JP4187888B2

JP4187888B2 - Seedling box arranging machine

Info

Publication number: JP4187888B2
Application number: JP31090399A
Authority: JP
Inventors: 勝尾嶋; 孝一本田
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 1999-11-01
Filing date: 1999-11-01
Publication date: 2008-11-26
Anticipated expiration: 2019-11-01
Also published as: JP2001120068A

Description

【０００１】
【発明の属する技術分野】
この発明は、播種された苗箱、もしくは播種したのち発芽させた苗箱を地面に並べるための苗箱並べ機に関するものである。
【０００２】
【従来の技術】
従来、水稲や野菜等の苗を育苗するための苗箱がある。この苗箱において、育苗施設等で播種あるいは出芽まで行わせたあと、苗箱並べ機を使用して前記苗箱を育苗ハウス内の地面に敷き詰めるように並べ、苗が移植機等で圃場内に移植できる大きさに生育するまで育苗するようになっている。
【０００３】
尚、前記苗箱並べ機は、育苗ハウスの出入口から育苗ハウス内にかけて敷設された走行レ−ル上を走行するように設けられ、前記走行レ−ルに直交する方向に延びる機枠に沿って苗箱を並べる毎に順次苗箱１枚分の距離を走行し、次列の苗箱を並べる構成となっており、前記機枠が走行方向に対して左右方向に長く設けられる。
【０００４】
尚、前記走行レ−ル部分には苗箱を並べずに、該走行レ−ル部分を後の育苗管理をするための通路として残しながら育苗ハウス内に苗箱を並べている。そして、前記機枠上を左右移動する苗箱供給装置へ苗箱を供給することにより、苗箱並べ機へ苗箱を供給するようになっている。
【０００５】
【発明が解決しようとする課題】
育苗ハウス内に苗箱を並べるにあたり、上記構成の苗箱並べ機を育苗ハウス外から該育苗ハウス内へ搬送する際、前記苗箱並べ機が走行方向に対して左右方向に長く構成されるので、育苗ハウスの出入口が苗箱並べ機の左右幅より小さければ、苗箱並べ機を分割して搬入し育苗ハウス内で組み立てるか、苗箱並べ機を左右方向に移動させながら前記出入口を通過させなければならない。
【０００６】
育苗ハウス内へ苗箱並べ機を分割して搬入すると、育苗ハウスヘの搬入の度に苗箱並べ機を組み立てなければならず、余分な手間を要する。また、苗箱並べ機を左右方向に移動させながら育苗ハウス内へ搬送しようとすると、通常の苗箱並べ作業時の走行方向と異なる左右方向へ移動させるための手段が格別に必要となる。
【０００７】
本発明は、育苗ハウスの内外での前記苗箱並べ機の移動作業の容易化を図るものである。
【０００８】
【課題を解決するための手段】
上記課題を解決するために、本発明は次のような技術的手段を講じた。
すなわち、請求項１に係る発明は、育苗ハウス（Ａ）の出入口（Ａ１）から該育苗ハウス（Ａ）内に敷設した走行レ−ル（９）上を走行する走行台車（１６）と、該走行台車（１６）に支持された苗箱位置決め枠（１７）と、該苗箱位置決め枠（１７）に連結した左右それぞれの踏み板（１８）と、苗箱位置決め枠（１７）上を左右方向に移動する苗箱トロッコ（１９）とを備え、苗箱位置決め枠（１７）を正面視で左右両端部が上位となる逆への字型に形成し、苗箱位置決め枠（１７）に左右の苗箱位置決め枠回動軸（２６Ｌ，２６Ｒ）を固着し、走行台車（１６）に左右の苗箱位置決め枠回動軸（２６Ｌ，２６Ｒ）が各々係合する左右の切り欠き部（２７ａ）を設け、苗箱トロッコ（１９）を左の苗箱位置決め枠回動軸（２６Ｌ）よりも左側に移動させると、苗箱トロッコ（１９）の自重で前記右の苗箱位置決め枠回動軸（２６Ｒ）が右の切り欠き部（２７ａ）の下端から上側へ浮き上がって左の苗箱位置決め枠回動軸（２６Ｌ）回りに苗箱位置決め枠（１７）が回動して該苗箱位置決め枠（１７）の左側部分（１７Ｌ）を下降させ、該苗箱位置決め枠（１７）の左端部に設けた脚部（２８Ｌ）が接地して前記左側部分（１７Ｌ）が地面と平行な苗箱並べ状態となり、逆に苗箱トロッコ（１９）を右の苗箱位置決め枠回動軸（２６Ｒ）よりも右側に移動させると、前記右の苗箱位置決め枠回動軸（２６Ｒ）回りに苗箱位置決め枠（１７）が回動して該苗箱位置決め枠（１７）の右側部分（１７Ｒ）を下降させ、該苗箱位置決め枠（１７）の右端部に設けた脚部が接地して前記右側部分（１７Ｒ）が地面と平行な苗箱並べ状態となり、苗箱トロッコ（１９）を左右の苗箱位置決め枠回動軸（２６Ｌ，２６Ｒ）の間に移動させると、左右の苗箱位置決め枠回動軸（２６Ｌ，２６Ｒ）が左右の切り欠き部（２７ａ）にそれぞれ支持されて前記左側部分（１７Ｌ）及び右側部分（１７Ｒ）が共に地面から浮き上がった非苗箱並べ状態となる苗箱並べ機とした。
【０００９】
【００１０】
【００１１】
【００１２】
【００１３】
【発明の効果】
よって、苗箱位置決め枠１７を左右で一体的に構成し簡素化を図ることができると共に、苗箱トロッコ１９を左側に移動させて苗箱位置決め枠１７の左側部分１７Ｌを下降させることにより、該左側部分１７Ｌで苗箱並べ作業が行え、逆に苗箱トロッコ１９を右側に移動させて苗箱位置決め枠１７の右側部分１７Ｒを下降させることにより、該右側部分１７Ｒで苗箱並べ作業が行える。そして、苗箱トロッコ１９の重心が左右方向で左右の苗箱位置決め枠回動軸２６Ｌ，２６Ｒの間にあるときは、苗箱位置決め枠１７が非苗箱並べ状態となるので、苗箱トロッコ１９が多少左右移動しても苗箱位置決め枠１７が回動するようなことを防止することができるため、苗箱位置決め枠１７を安定させた状態で苗箱トロッコ１９を走行レール９の上方位置へ移動させることができ、作業者が走行レ−ル９部分で苗箱トロッコ１９への苗箱群Ｂの供給作業を安全に行うことができる。また、苗箱並べ機を走行レ−ル９に沿って前後方向に移動させるとき、苗箱位置決め枠１７を安定させた状態で苗箱トロッコ１９を走行レール９の上方位置へ移動させることができるので、作業者が走行レ−ル９部分で苗箱並べ機を前後方向に安全に移動させることができ、搬送台車１により苗箱並べ機を容易に育苗ハウスＡ内へ搬送することができる。
【００１４】
【００１５】
【００１６】
【００１７】
【００１８】
【発明の実施の形態】
この発明の実施の一形態を図面に基づき説明する。
【００１９】
図１、図２及び図３は、搬送台車１を示したものであり、この搬送台車１は、前後左右に計４個の走行車輪２を備えて構成される。前記走行車輪２は、平面視で枠状の車体フレ−ム３に取り付けられている。尚、前記車体フレ−ム３の中央部には、該車体フレ−ム３間を繋ぐ補助フレ−ム４を設けている。前記車体フレ−ム３の上側には計４個のロ−ラ５を回転自在に設けており、このロ−ラ５の上側に該ロ−ラ５と接する円形の回転テ−ブル６を設けている。前記回転テ−ブル６は、前記補助フレ−ム４の上側に設けた上下方向の回動軸７回りに回動可能に設けられ、前記ロ−ラ５を回転させながら横方向に回動する構成となっている。この回転テ−ブル６の上側には、２本の移動用レ−ル８を平行に固着して設けている。この移動用レ−ル８は、断面円形の筒軸により構成され、後述する苗箱並べ機が移動するためのレ−ルとなる。また、前記走行車輪２は中央部に溝２ａを設けた構成となっており、この搬送台車１は、図４に示す育苗ハウスＡ外から育苗ハウスＡの出入口Ａ１を介して該育苗ハウスＡ内の地面に並行に敷設された２本の走行レ−ル９を走行可能に構成されている。尚、前記走行レ−ル９は、断面円形の筒軸により構成され、搬送台車１の移動用レ−ル８と２本のレ−ル間隔（レ−ル幅）が同一となっている。
【００２０】
尚、前記育苗ハウスＡ内は、播種、覆土した苗箱ａを地面に並べて出芽させ苗が所定の大きさになるまで育苗するためのものである。尚、場合によっては、出芽させた状態の苗箱ａを並べて育苗することもある。
【００２１】
前記苗箱ａは、図５に示すように、マット状の水稲苗を栽培するものであり、長手方向約６０ｃｍ、短手方向約３０ｃｍの長方形の形状のマット苗を育苗できるように四方の側壁１１，１２及び底板１３が設けられ上部が開放された構成となっている。尚、前記四方の側壁１１，１２は、前記底板１３の上面からの高さが２９〜３０ｍｍとなるように設けられている。前記底板１３には無数の排水孔１４を設けており、育苗培土に保持されず苗箱ａの底部に降下した水を前記排水孔１４から排水し、灌水により生じた苗箱ａの底部に降下した過分な水分を苗箱ａ内から排出するようになっている。また、この苗箱ａの外周部は、前記側壁１１，１２が上端の外側で下方に折り曲げた鈎型に構成されている。そして、複数の苗箱ａを上下に段積みするとき、互いの苗箱ａの一部が側面視で重複するようにして該苗箱ａが段積みされる。
【００２２】
次に、育苗ハウスＡ内に苗箱ａを並べる作業について説明する。
育苗ハウスＡ内において、図５、図６、図７及び図１１に示すように、苗箱並べ機の一例である苗箱並べ補助器具１５を使用して地面に敷き詰めるように苗箱ａを並べていく。この苗箱並べ補助器具１５は、育苗ハウスＡの出入口Ａ１から育苗ハウスＡ内の地面に並行に敷設された２本の走行レ−ル９上を走行する走行台車１６、該走行台車１６に支持された左右一体の苗箱位置決め枠１７、該苗箱位置決め枠１７に連結された左右それぞれの踏み板１８及び前記苗箱位置決め枠１７上を移動する苗箱トロッコ１９を備えており、前記苗箱位置決め枠１７の前記レール９の左右近傍には苗箱ａの左右位置を決めるための左右それぞれの左右位置決めディスク２０、及び前記苗箱位置決め枠１７の前部には苗箱ａの前後方向の位置決めをするための前後位置決めプレート２１を設けている。尚、前記走行台車１６の走行車輪２２は中央部に溝２２ａを設けた構成となっている。尚、この苗箱並べ補助器具１５は、左右移動する苗箱トロッコ１９を除いて左右対称に構成されている。この苗箱並べ補助器具１５により、レール９の左右にそれぞれ左右１列につき４枚づつ苗箱ａを並べるようになっている。前記苗箱トロッコ１９は、車輪２３により苗箱位置決め枠１７上を左右方向に移動するようになっており、該トロッコ１９が備える前後方向に搬送可能なローラコンベア２４上に床土を詰めて種籾を播種、覆土した苗箱ａ…が複数枚（２０枚）づつ段積みされた苗箱群Ｂを２個載置するようになっている。すなわち、前記苗箱トロッコ１９は、苗箱ａを搭載して機枠となる苗箱位置決め枠１７上を左右方向に移動する苗箱供給装置となっている。また、前記苗箱トロッコ１９には、移動用のハンドル２５を設けている。尚、前記苗箱群Ｂは、パレットｐに載置された状態で前記苗箱トロッコ１９へ供給される。
【００２３】
また、苗箱位置決め枠１７は、正面視又は背面視で左右両端部が上位となる逆ヘの字型の形状となっており、前後方向の苗箱位置決め枠回動軸２６Ｌ，２６Ｒを左右にそれぞれ固着して設けている。一方、走行台車１６の前後には回動軸支持プレ−ト２７をそれぞれ固着して設けており、該回動軸支持プレ−ト２７には前記苗箱位置決め枠回動軸２６Ｌ，２６Ｒが係合する切り欠き部２７ａを左右にそれぞれ設けている。尚、前記切り欠き部２７ａは、前記回動軸支持プレ−ト２７の上側から切り欠いた構成となっており、苗箱位置決め枠１７の前記苗箱位置決め枠回動軸２６Ｌ，２６Ｒが上側から係合するようになっている。従って、苗箱位置決め枠１７は、前記回動軸支持プレ−ト２７により支持された構成となっている。
【００２４】
そして、例えば、苗箱トロッコ１９を左側の前記苗箱位置決め枠回動軸２６Ｌより左側に移動させると、苗箱トロッコ１９の自重により、左側の前記苗箱位置決め枠回動軸２６Ｌ回りに苗箱位置決め枠１７が回動して該苗箱位置決め枠１７の左側部分１７Ｌが下降し、左端部に設けた脚部２８Ｌが接地して前記苗箱位置決め枠１７の左側部分１７Ｌが地面と平行な苗箱並べ状態となり、走行レ−ル９の左側に苗箱ａを並べる作業を行えるようになっている。このとき、右側の前記苗箱位置決め枠回動軸２６Ｒは、回動軸支持プレ−ト２７の切り欠き部２７ａの下端から若干上側へ浮き上がった状態となる。逆に、苗箱トロッコ１９を右側の前記苗箱位置決め枠回動軸２６Ｒより右側に移動させると、前記右側の前記苗箱位置決め枠回動軸２６Ｒ回りに苗箱位置決め枠１７が回動して該苗箱位置決め枠１７の右側部分１７Ｒが下降し、右端部に設けた脚部（図示せず）が接地して前記苗箱位置決め枠１７の右側部分１７Ｒが地面と平行な苗箱並べ状態となり、走行レ−ル９の右側に苗箱ａを並べる作業を行えるようになっている。
【００２５】
そして、苗箱トロッコ１９を左右方向で左右の苗箱位置決め枠回動軸２６Ｌ，２６Ｒの間に移動させると、前記左右の苗箱位置決め枠回動軸２６Ｌ，２６Ｒがそれぞれ回動軸支持プレ−ト２７の切り欠き部２７ａに支持され、左側及び右側の苗箱位置決め枠１７Ｌ，１７Ｒが共に地面から浮き上がった非苗箱並べ状態となる。この状態で、作業者が走行台車１６を走行レ−ル９に沿って前後に移動させることにより、この苗箱並べ補助器具１５を前後に移動させる構成となっている。
【００２６】
従って、前記左右の苗箱位置決め枠１７を一体的に構成し簡素化を図ることができると共に、苗箱トロッコ１９の重心が左右方向で左右の苗箱位置決め枠回動軸２６Ｌ，２６Ｒの間にあるときは苗箱位置決め枠１７が前記非苗箱並べ状態となるので苗箱トロッコ１９が多少左右移動しても苗箱位置決め枠１７が回動するようなことを防止することができるため、前記苗箱位置決め枠１７を安定させた状態で前記苗箱トロッコ１９を前記走行レール９の上方位置へ移動させることができ、作業者が走行レ−ル９部分で前記苗箱トロッコ１９への苗箱群Ｂの供給作業を安全に行うことができる。また、同様に、苗箱並べ補助器具１５を走行レ−ル９に沿って前後方向に移動させるとき、前記苗箱位置決め枠１７を安定させた状態で前記苗箱トロッコ１９を前記走行レール９の上方位置へ移動させることができるので、作業者が走行レ−ル９部分で苗箱並べ補助器具１５の前後方向の移動作業を安全に行うことができる。
【００２７】
苗箱並べ作業に際しては、予め地面に根切りネット（図示せず）を敷いておく。そして、前記踏み板１８の上に作業者が乗った状態で、苗箱トロッコ１９上の苗箱群Ｂから図９、図１０に示すような苗箱把持具３０を用いて１枚づつ苗箱ａを取り出して地面に並べる。
【００２８】
前記苗箱把持具３０は、苗箱ａの長手方向に沿う両端部の側壁１１に係合する固定係合体３１及び可動係合体３２と作業者が把持するグリップ３３と前記可動係合体３２を可動させる可動係合体操作レバ−３４とを備えて構成される。そして、前記苗箱把持具３０は、苗箱ａの長手方向に沿う両端部の側壁１１の一方の鈎型に固定係合体３１の円棒を苗箱ａの下方からひっかけると共に、可動係合体操作レバ−３４を握って可動係合体３２を苗箱ａの固定係合体３１が係合している側壁１１の反対側の側壁１１上端の鈎型の下方に入り込ませて、苗箱ａを把持するようになっている。また、苗箱ａを把持した状態から苗箱ａの下面を地面等に接地させ苗箱ａを支持させた状態で可動係合体操作レバ−３４を放して可動係合体３２を苗箱ａから退避させ、固定係合体３１を苗箱ａの長手方向に沿う側壁１１の鈎型から外して、苗箱ａの把持を解除するようになっている。
【００２９】
そして、前記苗箱把持具３０により、一枚目の苗箱ａの短手方向の側壁１２を前記左右位置決めディスク２０に当接させながら上方から苗箱位置決め枠１７内を通して苗箱ａを地面に置くように苗箱把持具３０を降ろして苗箱ａを地面上に並べる。そして、前述の左右位置決めディスク２０を使用して左右位置決めした苗箱ａと短手方向の側壁１２が互いに当接するように次の苗箱ａを前に並べた苗箱ａの左右外側に苗箱把持具３０により地面に並べ、以下同様に前に地面に並べた苗箱ａとの隙間を空けないように並べていき、苗箱ａ…を左右方向に並べる。尚、苗箱トロッコ１９が左右に移動可能であるので、常に作業者の近くで苗箱トロッコ１９を停車させておくことができ、苗箱並べ作業の作業性が向上する。
【００３０】
左右方向の計８枚の苗箱ａの並べ作業が完了したならば、作業者は苗箱トロッコ１９を左右方向で左右の苗箱位置決め枠回動軸２６Ｌ，２６Ｒの間に移動させ、苗箱位置決め枠１７及び踏み板１８を地面から浮き上げる。この状態で、苗箱位置決め枠１７が適当な位置に移動するまで（苗箱の１箱分移動させる）走行台車１６を走行させる。そして、苗箱トロッコ１９を左右いずれか一方側に移動させることにより左側又は右側の苗箱位置決め枠部分１７Ｌ，１７Ｒが下降して苗箱並べ状態となり、作業者が次列の苗箱並べ作業を行って行く。このとき、踏み板１８に作業者が乗った状態で苗箱把持具３０を用いて苗箱並べ作業を行うことにより、作業者の体重で前記踏み板１８を介して既に並べた前行程列の苗箱ａを上から押さえていく。そして、前行程と同様に一枚目の苗箱ａを左右位置決めディスク２０を使用して左右位置決めして並べる。このとき、前後位置決めプレート２１に苗箱把持具３０の苗箱移動用ローラ３５を当接させて前記前後位置決めプレート２１に沿って苗箱把持具３０を下降させて、該苗箱ａを地面上に置いた状態で苗箱把持具３０の可動係合体３２が苗箱ａとの係合を解除できるように前行程列の苗箱ａと前後方向にスペースをとって地面上に置く。そして、苗箱把持具３０の可動係合体操作レバ−３４を放して前記可動係合体３２の係合を解除した状態で、前後位置決めプレート２１に苗箱移動用ローラ３５を当接し下降させながら苗箱把持具３０を該苗箱移動用ローラ３５の回動軸３５ａ回りに回動させることにより苗箱把持具３０の固定係合体３１で苗箱ａを後方に押して地面上を移動させ、後方の苗箱ａとの前記スペースを無くして苗箱ａを並べる。そして、苗箱ａと固定係合体３１との係合を解除し、次の苗箱ａを並べる作業に移る。以下同様に、左右方向において前に地面に並べた苗箱ａの左右外側に互いに隙間を空けないように並べると共に後方の苗箱ａとの間を詰めて苗箱ａを並べていくことにより、育苗ハウスＡ内の地面に敷き詰めるように苗箱ａを並べていく。
【００３１】
ところで、この苗箱並べ補助器具１５は、育苗ハウスＡの走行レ−ル９と搬送台車１の移動用レ−ル８とを接続する２本の案内レ−ル４１を介して前記移動用レ−ル８上に載るようになっている。前記案内レ−ル４１は、断面円形の軸により構成され、前記走行レ−ル９及び前記移動用レ−ル８と２本のレ−ル間隔（レ−ル幅）を同幅に設けている。この案内レ−ル４１は、２本の案内レ−ル４１を繋ぐ前後の支持プレ−ト４２と前記移動用レ−ル８との第一接続部４３と前記走行レ−ルとの第二接続部４４とを備えて構成されている。前記第一接続部４３は、案内レ−ル４１端に該レ−ル４１より径が小さい軸４３ａを備えて構成され、該軸４３ａが前記移動用レ−ル８の一端の筒軸内に挿入されて案内レ−ル４１と移動用レ−ル８を接続する構成となっている。また、前記第二接続部４４は、案内レ−ル４１端に一部が該レ−ル４１を上方から覆うように固着して設けたコの字型の案内プレ−ト４４ａを備えて構成され、該案内プレ−ト４４ａが前記走行レ−ル９の上方から載ることにより案内レ−ル４１と走行レ−ル９とを接続する構成となっている。尚、前記第一接続部４３は案内レ−ル４１の主要部４１ａに対して屈曲して設けられており、移動用レ−ル８に案内レ−ル４１を接続すると、前記案内レ−ル４１の主要部４１ａが地面に対して前後に傾斜するようになっている。従って、走行レ−ル９上の搬送台車１の移動用レ−ル８と前記走行レ−ル９との高低差があるにも拘らず、案内レ−ル４１により前記移動用レ−ル８と前記走行レ−ル９とを接続することができる。
【００３２】
そして、搬送台車１は、走行レ−ル９上から前記案内レ−ル４１を介して移動用レ−ル８上へ苗箱並べ補助器具１５が載せられると、前記移動用レ−ル８が回転テ−ブル６と共に横方向に回動することにより前記苗箱並べ補助器具１５の向きを変更することができる。
【００３３】
また、図１４、図１５及び図１６に示すように、この搬送台車１は、苗箱ａを複数枚（２０枚）づつ段積みしてパレットｐに載置された苗箱群Ｂを載置できる苗箱載置台５０を搭載することができる。前記苗箱載置台５０は、複数のロ−ラ５１ａからなるロ−ラコンベア５１により構成され、前記ロ−ラコンベア５１上で苗箱ａを前後に移動可能に構成している。前記ロ−ラコンベア５１の左右には該コンベア５１の上面より上端が高い側縁フレ−ム５２を設け、該側縁フレ−ム５２により前記苗箱群Ｂが左右に移動して苗箱載置台５０上から落下しないようにガードしている。尚、搬送台車１に搭載した状態で、苗箱載置台５０のロ−ラコンベア５１の上面が苗箱トロッコ１９のローラコンベア２４の上面と同じ高さとなる。また、前記側縁フレ−ム５２間には、前後方向の中央フレ−ム５３を設けている。前記側縁フレ−ム５２及び前記中央フレ−ム５３の下側には、前記中央フレ−ム５３をまたいで左右の側縁フレ−ム５２を繋ぐ左右方向の左右フレ−ム５４を前後にそれぞれ固着して設けている。前記左右のフレ−ム５４には、該フレ−ム５４から下側に向けて脚部フレ−ム５５をそれぞれ２本づつ固着して延設している。そして、計４本となる前記脚部フレ−ム５５の下端部を搬送台車１の枠状の車体フレ−ム３の隅部に載せて、搬送台車１に苗箱載置台５０を搭載する構成となっている。尚、搬送台車１の回転テ−ブル６は、前記脚部フレ−ム５５と干渉しないような直径となっている。また、前記脚部フレ−ム５５の下端部には、前後方向のピン５６をそれぞれ設けている。そして、前記脚部フレ−ム５５のうちの前後一方の２本に設けた前記ピン５６を搬送台車１の車体フレ−ム３に設けた２枚の位置決め用プレ−ト５７に備える挿込用孔５７ａにそれぞれ挿入し、前記脚部フレ−ム５５のうちの他方の２本に設けた前記ピン５６に前記車体フレ−ム３に設けた２枚のロックプレ−ト５８を回動させて該ロックプレ−ト５８に備える切り欠き溝５８ａをそれぞれ係合させ、苗箱載置台５０を搬送台車１に固定するようになっている。
【００３４】
また、苗箱載置台５０のロ−ラコンベア５１の前後には、それぞれプレ−トにより構成される苗箱移動規制具５９を設けている。この苗箱移動規制具５９は、苗箱載置台５０の中央フレ−ム５３に回動軸５９ａ回りに回動可能に取り付けられ、上側ストッパ６０に当接するまで上方に回動した規制位置と下側ストッパ６１に当接するまで下方に回動した退避位置とに切り替えられる。前記規制位置では、前記苗箱移動規制具５９の上端がロ−ラコンベア５１の上面より高くなり、ロ−ラコンベア５１上の苗箱群Ｂが前後に移動して苗箱載置台５０上から落下しないようにガードしている。一方、前記退避位置では、前記苗箱移動規制具５９の上端がロ−ラコンベア５１の上面より低くなり、ロ−ラコンベア５１上の苗箱群Ｂを前後に移動して苗箱載置台５０上から取り出せるようになっている。尚、苗箱載置台５０の側縁フレ−ム５２にはハンドル６２が固着され、作業者がこのハンドル６２を把持して搬送台車１と共に苗箱載置台５０を移動させる構成となっている。
【００３５】
従って、育苗ハウスＡ内に苗箱を並べるにあたり、まず、育苗ハウスＡ外から苗箱並べ補助器具１５を搭載した搬送台車１を走行レ−ル９上を走行させて育苗ハウスＡ内に移動させる。このとき、育苗ハウスＡの出入口Ａ１を前記搬送台車１が通過するときには、搬送台車１の移動用レ−ル８が左右方向へ向くように回転テ−ブル６を回動させて苗箱並べ補助器具１５の苗箱位置決め枠１７の長手方向が搬送台車１の前後方向に向くようにして、搬送台車１を通過させる。苗箱並べ補助器具１５が育苗ハウスＡ内に搬入されると、苗箱並べ補助器具１５の前後方向と搬送台車１の前後方向とを一致させるべく前記移動用レ−ル８が前後方向へ向くように回転テ−ブル６を回動させて前後方向を搬送台車１の前後方向と一致させ、前記移動用レ−ル８に案内レ−ル４１を接続して移動用レ−ル８と走行レ−ル９とを接続する。そして、作業者が、移動用レ−ル８上の苗箱並べ補助器具１５を前記案内レ−ル４１を介して走行レ−ル９上へ押し出して移動させる。そして、作業者が、苗箱並べ補助器具１５を走行レ−ル９上で走行させながら育苗ハウスＡの端部から苗箱ａを並べていく。
【００３６】
苗箱並べ補助器具１５により苗箱並べ作業を行うとき、搬送台車１に苗箱載置台５０を搭載して装着する。そして、苗箱並べ作業に伴って苗箱並べ補助装置１５の苗箱トロッコ１９上の苗箱ａが無くなるのに起因して、前記搬送台車１により育苗ハウスＡ外から育苗ハウスＡ内の苗箱並べ補助器具１５の近くまで次の苗箱群Ｂを搬送し、前記苗箱トロッコ１９を走行レ−ル９の上方位置（苗箱載置台５０の左右位置）まで左右移動させ、該苗箱トロッコ１９を苗箱載置台５０と接続させる。そして、前記苗箱載置台５０上の苗箱群Ｂをパレットｐごと前記苗箱載置台５０及び前記苗箱トロッコ１９双方のロ−ラコンベア２４，５１を利用して苗箱トロッコ１９上へ押し出して供給する。この作業を必要に応じて繰り返し、苗箱群Ｂの苗箱トロッコ１９への供給作業を行う。
【００３７】
育苗ハウスＡ内の苗箱並べ作業が終了すると、搬送台車１に搭載された苗箱載置台５０を取り外し、搬送台車１の移動用レ−ル８に案内レ−ル４１を接続して移動用レ−ル８と走行レ−ル９とを接続する。そして、作業者が、左右の苗箱位置決め枠１７Ｌ，１７Ｒが共に地面から浮き上がった非苗箱並べ状態にして走行レ−ル９上の苗箱並べ補助器具１５を前記案内レ−ル４１を介して前記移動用レ−ル８上へ押し込んで移動させ、該苗箱並べ補助器具１５を搬送台車１に搭載する。その後、前記苗箱並べ補助器具１５が横方向に回動できる位置まで搬送台車１を移動させ、搬送台車１の移動用レ−ル８が左右方向へ向くように回転テ−ブル６を回動させて苗箱並べ補助器具１５の苗箱位置決め枠１７の長手方向が搬送台車１の前後方向に向くようにして、搬送台車１を走行レ−ル９上を走行させて育苗ハウスＡの出入口を通過させ苗箱並べ補助器具１５を育苗ハウスＡ外に搬出する。
【００３８】
以上により、この搬送台車１は、回転テ−ブル６により搭載した苗箱並べ補助器具１５の向きを変更することができるので、育苗ハウスＡの出入口Ａ１の幅が苗箱並べ補助器具１５の左右幅より小さくても、その苗箱並べ補助器具１５の長手方向すなわち左右方向を搬送方向に向けて搬送することができ、苗箱並べ補助器具１５を容易に育苗ハウスＡ内へ搬送することができる。また、前記苗箱並べ補助器具１５に格別に左右移動する手段を設けずに苗箱並べ補助器具１５を育苗ハウスＡ内へ搬送することができるので、苗箱並べ補助器具１５の軽量化を図ることができ、苗箱並べ作業時に作業者が小さい力で苗箱並べ補助器具１５を移動させることができる。
【００３９】
更に、この搬送台車１においては、走行レ−ル９上を走行して育苗ハウスＡ内へ前記苗箱並べ補助器具１５を搬送することができるので、該苗箱並べ補助器具１５を容易に搬送することができると共に、育苗ハウスＡ内において搭載した苗箱並べ補助器具１５を積み降ろすとき、回転テ−ブル６により苗箱並べ補助器具１５を苗箱並べ作業状態の向きに回動させてから移動用レ−ル８と接続される案内レ−ル４１を介して走行レ−ル９上へ降ろすことができ、苗箱並べ補助器具１５を育苗ハウスＡ内で降ろす作業も容易になる。また、苗箱並べ補助器具１５を左右方向に移動させながら育苗ハウスＡ内へ搬入しようとすると、育苗ハウスＡの出入口Ａ１部分に走行レ−ル９を設けているため前記走行レ−ル９が邪魔になるおそれがあるが、この搬送台車１により、苗箱並べ補助器具１５を育苗ハウスＡ内へ搬入するとき育苗ハウスＡの出入口Ａ１を容易に通過させることができる。
【００４０】
また、この搬送台車１においては、移動用レ−ル８により苗箱並べ補助器具１５を搬送台車１上で移動させることができるので、苗箱並べ補助器具１５の積み込み及び積み降ろしをするとき、移動用レ−ル８と接続される案内レ−ル４１を介して行うことができ、前記積み込み及び積み降ろしの作業を容易に行うことができる。
【００４１】
また、この搬送台車１においては、苗箱載置台５０を搭載することができるので、苗箱並べ補助器具１５を使用して育苗ハウスＡ内で苗箱並べ作業を行うときには、育苗ハウスＡ内の前記苗箱並べ補助器具１５の近くへ苗箱を搬送して供給することができ、苗箱並べ作業の作業能率を向上させることができる。
【００４２】
尚、この発明の実施の形態は苗箱並べ機として苗箱並べ補助器具１５について詳述したが、本発明はこれに限定されるものではない。例えば、前記苗箱並べ補助器具１５の代わりに、自動的に育苗ハウスＡ内に苗箱ａを並べる自動苗箱並べ機であってもよい。
【００４３】
尚、この発明の実施の形態は人手によりレ−ル９上で搬送台車１及び苗箱並べ補助器具１５を移動させるものついて説明したが、本発明はこれに限定されるものではない。
【図面の簡単な説明】
【図１】搬送台車を示す側面図
【図２】搬送台車を示す正面図
【図３】搬送台車を示す平面図
【図４】育苗ハウスを示す平面図
【図５】苗箱を示す斜視図
【図６】苗箱並べ補助器具を示す正面図
【図７】非苗箱並べ状態の苗箱並べ補助器具を示す正面図
【図８】苗箱並べ補助器具を示す平面図
【図９】苗箱把持具を示す側面図
【図１０】苗箱把持具を示す底面図
【図１１】苗箱把持具により苗箱を並べる状態を示す側面図
【図１２】苗箱並べ補助器具を搭載した状態の搬送台車を示す側面図
【図１３】案内レ−ルを示す平面図
【図１４】苗箱載置台を搭載した状態の搬送台車を示す側面図
【図１５】苗箱載置台を搭載した状態の搬送台車を示す正面図
【図１６】苗箱載置台を搭載した状態の搬送台車を示す平面図
【符号の説明】
９…走行レール、１５…苗箱並べ補助器具（苗箱並べ機）、１６…走行台車、１７…苗箱位置決め枠、１７Ｌ…苗箱位置決め枠の左側部分、１７Ｒ…苗箱位置決め枠の右側部分、１８…踏み板、１９…苗箱トロッコ、２６Ｌ，２６Ｒ…苗箱位置決め枠回動軸、２７ａ…切り欠き部、２８Ｌ…脚部、Ａ…育苗ハウス、Ａ１…出入口[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a seedling box arranging machine for arranging seeded seedling boxes or seedling boxes germinated after seeding on the ground.InIt is related.
[0002]
[Prior art]
  Conventionally, there are seedling boxes for raising seedlings such as paddy rice and vegetables. In this seedling box, after seeding or budding at a seedling facility, etc., the seedling box is arranged using a seedling box arranging machine so that the seedling box is laid down on the ground in the nursery house, and the seedling is placed in the field by a transplanter or the like. The seedlings are grown until they grow to a size that can be transplanted.
[0003]
  The seedling box arranging machine is provided so as to run on a traveling rail laid from the entrance and exit of the nursery house to the inside of the nursery house, along a machine frame extending in a direction perpendicular to the traveling rail. Each time the seedling boxes are arranged, it travels a distance corresponding to one seedling box and arranges the seedling boxes in the next row, and the machine frame is provided long in the left-right direction with respect to the traveling direction.
[0004]
  The seedling boxes are arranged in the nursery house while the seedling boxes are not arranged in the traveling rail part, and the traveling rail part is left as a passage for subsequent seedling management. And a seedling box is supplied to a seedling box arranging machine by supplying the seedling box to a seedling box supply device that moves left and right on the machine frame.
[0005]
[Problems to be solved by the invention]
  When arranging the seedling boxes in the nursery house, when the seedling box arranging machine having the above configuration is transported from outside the nursery house into the nursery house, the seedling box arranging machine is configured to be longer in the left-right direction with respect to the traveling direction. If the entrance of the nursery house is smaller than the left and right width of the seedling box arranging machine, the seedling box arranging machine is divided and carried in and assembled in the nursery house, or the seedling box arranging machine is moved left and right and passed through the entrance and exit. There must be.
[0006]
  If the seedling box arranging machine is divided and carried into the nursery house, the seedling box arranging machine must be assembled every time the nursery house is carried in, and extra labor is required. Further, if the seedling box arranging machine is moved in the left-right direction and is to be conveyed into the nursery house, a means for moving in the left-right direction different from the traveling direction at the time of normal seedling box arranging work is required.
[0007]
  The present invention is intended to facilitate the moving operation of the seedling box arranging machine inside and outside the nursery house.
[0008]
[Means for Solving the Problems]
  In order to solve the above problems, the present invention has taken the following technical means.
  That is, according to claim 1inventionIsA traveling carriage (16) traveling on a traveling rail (9) laid in the nursery house (A) from the entrance (A1) of the nursery house (A), and a seedling supported by the traveling carriage (16) A box positioning frame (17), left and right footboards (18) connected to the seedling box positioning frame (17), and a seedling box truck (19) that moves in the left-right direction on the seedling box positioning frame (17). The seedling box positioning frame (17) is formed in a reverse shape with the left and right ends being higher in the front view, and the seedling box positioning frame (17) has left and right seedling box positioning frame rotation shafts (26L, 26R). ), And left and right notch portions (27a) that engage the left and right seedling box positioning frame rotation shafts (26L, 26R) are provided on the traveling carriage (16), and the seedling box truck (19) is If you move the seedling box positioning frame rotation axis (26L) to the left side, the seedling box truck 19) The right seedling box positioning frame rotation shaft (26R) floats upward from the lower end of the right notch (27a) by its own weight, and the seedling box is rotated around the left seedling box positioning frame rotation shaft (26L). The positioning frame (17) rotates to lower the left side portion (17L) of the seedling box positioning frame (17), and the leg (28L) provided at the left end of the seedling box positioning frame (17) is grounded. The left side portion (17L) is in a seedling box arrangement state parallel to the ground, and conversely, when the seedling box dolly (19) is moved to the right side of the right seedling box positioning frame rotation shaft (26R), the right side The seedling box positioning frame (17) rotates around the seedling box positioning frame rotation axis (26R) to lower the right side portion (17R) of the seedling box positioning frame (17), and the seedling box positioning frame (17) Seedling with the leg provided at the right end of the ground and the right part (17R) parallel to the ground When the seedling box trolleys (19) are moved between the left and right seedling box positioning frame rotating shafts (26L, 26R), the left and right seedling box positioning frame rotating shafts (26L, 26R) are turned left and right. A seedling box arranging machine in a non-seedling box arrangement state in which the left part (17L) and the right part (17R) are both lifted from the ground, supported by the notch part (27a).It was.
[0009]
[0010]
[0011]
[0012]
[0013]
【The invention's effect】
  Therefore,The seedling box positioning frame 17 can be configured integrally on the left and right sides for simplification, and the left side portion 17L of the seedling box positioning frame 17 is lowered by moving the seedling box trolley 19 to the left side. The seedling box arranging operation can be performed at 17L, and conversely, the seedling box arranging operation can be performed at the right side portion 17R by moving the seedling box truck 19 to the right side and lowering the right side portion 17R of the seedling box positioning frame 17. When the center of gravity of the seedling box truck 19 is between the left and right seedling box positioning frame rotation shafts 26L and 26R in the left-right direction, the seedling box positioning frame 17 is in a non-seedling box alignment state. It is possible to prevent the seedling box positioning frame 17 from rotating even if it moves slightly to the left and right, so that the seedling box truck 19 is moved to a position above the traveling rail 9 while the seedling box positioning frame 17 is stabilized. The operator can safely move the seedling box group B to the seedling box truck 19 at the traveling rail 9 portion. Also seedling box lined up When the machine is moved in the front-rear direction along the traveling rail 9, the seedling box truck 19 can be moved to the upper position of the traveling rail 9 with the seedling box positioning frame 17 being stabilized. The seedling box arranging machine can be safely moved in the front-rear direction in the traveling rail 9 portion,Easy seedling house with seedling box arranging machineACan be transported in.
[0014]
[0015]
[0016]
[0017]
[0018]
DETAILED DESCRIPTION OF THE INVENTION
  An embodiment of the present invention will be described with reference to the drawings.
[0019]
  1, FIG. 2 and FIG. 3 show a transport cart 1, and this transport cart 1 comprises a total of four traveling wheels 2 on the front, rear, left and right. The traveling wheels 2 are attached to a frame-shaped vehicle body frame 3 in plan view. An auxiliary frame 4 for connecting the vehicle body frames 3 is provided at the center of the vehicle body frame 3. A total of four rollers 5 are rotatably provided above the vehicle body frame 3, and a circular rotating table 6 in contact with the rollers 5 is provided above the roller 5. ing. The rotating table 6 is provided so as to be rotatable about a vertical rotating shaft 7 provided on the upper side of the auxiliary frame 4 and rotates in the lateral direction while rotating the roller 5. It has a configuration. Two moving rails 8 are fixed in parallel on the upper side of the rotating table 6. This moving rail 8 is constituted by a cylindrical shaft having a circular cross section, and serves as a rail for moving a seedling box arranging machine described later. In addition, the traveling wheel 2 has a configuration in which a groove 2a is provided in the central portion, and the transport carriage 1 is provided inside the nursery house A from the outside of the nursery house A shown in FIG. It is comprised so that it can drive | work the two travel rails 9 laid in parallel on the ground of this. The travel rail 9 is constituted by a cylindrical shaft having a circular cross section, and the distance between the two rails (rail width) is the same as that of the moving rail 8 of the transport carriage 1.
[0020]
  The inside of the nursery house A is for raising seedlings a sowed and covered seedling boxes a on the ground until the seedlings have a predetermined size. In some cases, the seedling boxes a in a budding state may be arranged side by side to grow seedlings.
[0021]
  As shown in FIG. 5, the seedling box a is used to grow mat-like paddy rice seedlings, and has four side walls so that matted seedlings having a rectangular shape with a length of about 60 cm and a width of about 30 cm can be grown. 11, 12 and the bottom plate 13 are provided and the upper part is open. The four side walls 11 and 12 are provided so that the height from the upper surface of the bottom plate 13 is 29 to 30 mm. The bottom plate 13 is provided with an infinite number of drain holes 14 so that water that has not been held by the seedling cultivating soil and has fallen to the bottom of the seedling box a is drained from the drain hole 14 and dropped to the bottom of the seedling box a generated by irrigation. The excessive moisture thus discharged is discharged from the seedling box a. Further, the outer peripheral portion of the seedling box “a” is configured in a bowl shape in which the side walls 11 and 12 are bent downwardly outside the upper end. Then, when stacking a plurality of seedling boxes a up and down, the seedling boxes a are stacked such that a part of each seedling box a overlaps in side view.
[0022]
  Next, the operation | work which arranges the seedling box a in the nursery house A is demonstrated.
  In the nursery house A, as shown in FIGS. 5, 6, 7, and 11, the seedling boxes “a” are arranged so as to be spread on the ground using a seedling box arranging aid 15 that is an example of a seedling box arranging machine. Go. The seedling box arrangement assisting tool 15 is supported by a traveling carriage 16 that travels on two traveling rails 9 that are laid in parallel on the ground in the nursery house A from the entrance A1 of the nursery house A. A right and left integrated seedling box positioning frame 17, left and right foot plates 18 connected to the seedling box positioning frame 17, and a seedling box dolly 19 that moves on the seedling box positioning frame 17. The left and right positioning discs 20 for determining the left and right positions of the seedling box a are positioned near the left and right of the rail 9 of the frame 17, and the seedling box a is positioned in the front-rear direction at the front of the seedling box positioning frame 17. A front / rear positioning plate 21 is provided. The traveling wheel 22 of the traveling carriage 16 has a groove 22a at the center. In addition, this seedling box arrangement | sequence auxiliary tool 15 is comprised symmetrically except the seedling box truck 19 which moves right and left. With this seedling box arrangement assisting device 15, four seedling boxes a are arranged on the left and right sides of the rail 9 in each of the left and right rows. The seedling box truck 19 is moved in the left-right direction on the seedling box positioning frame 17 by means of wheels 23, and the soil is packed on the roller conveyor 24 provided in the truck 19 that can be conveyed in the front-rear direction. 2 seedling boxes B in which a plurality of (20) seedling boxes a are sowed and covered with soil are placed. That is, the seedling box trolley 19 is a seedling box supply device that mounts the seedling box a and moves in the left-right direction on the seedling box positioning frame 17 serving as a machine frame. Further, the seedling box truck 19 is provided with a handle 25 for movement. The seedling box group B is supplied to the seedling box truck 19 while being placed on the pallet p.
[0023]
  In addition, the seedling box positioning frame 17 has an inverted letter-shaped shape with both left and right ends being higher in front view or rear view, and the seedling box positioning frame rotation shafts 26L and 26R in the front-rear direction are set to the left and right. Each is fixedly provided. On the other hand, a rotating shaft support plate 27 is fixedly provided on the front and rear of the traveling carriage 16, and the seedling box positioning frame rotating shafts 26L and 26R are engaged with the rotating shaft support plate 27, respectively. The notch part 27a to match is provided in the right and left, respectively. The cutout portion 27a is cut out from the upper side of the rotating shaft support plate 27, and the seedling box positioning frame rotating shafts 26L and 26R of the seedling box positioning frame 17 are viewed from the upper side. It is designed to engage. Accordingly, the seedling box positioning frame 17 is supported by the rotating shaft support plate 27.
[0024]
  Then, for example, when the seedling box truck 19 is moved to the left side from the left seedling box positioning frame rotating shaft 26L, the seedling box around the seedling box positioning frame rotating shaft 26L on the left side by the dead weight of the seedling box truck 19L. The positioning frame 17 rotates to lower the left side portion 17L of the seedling box positioning frame 17, the leg portion 28L provided on the left end contacts the ground, and the left side portion 17L of the seedling box positioning frame 17 is parallel to the ground. The box arrangement state is established, and the seedling box a can be arranged on the left side of the traveling rail 9. At this time, the right seedling box positioning frame rotation shaft 26 </ b> R is lifted slightly upward from the lower end of the cutout portion 27 a of the rotation shaft support plate 27. Conversely, when the seedling box truck 19 is moved to the right side from the right seedling box positioning frame rotating shaft 26R, the seedling box positioning frame 17 rotates around the right seedling box positioning frame rotating shaft 26R. The right side portion 17R of the seedling box positioning frame 17 is lowered, the leg portion (not shown) provided at the right end is grounded, and the right side portion 17R of the seedling box positioning frame 17 is in a seedling box arrangement state parallel to the ground. The work of arranging the seedling boxes a on the right side of the traveling rail 9 can be performed.
[0025]
  When the seedling box truck 19 is moved in the left-right direction between the left and right seedling box positioning frame rotation shafts 26L, 26R, the left and right seedling box positioning frame rotation shafts 26L, 26R are respectively rotated shaft support pre- The left and right seedling box positioning frames 17L and 17R are supported by the notch portion 27a of the groove 27, and are in a non-seedling box arrangement state in which both are lifted from the ground. In this state, the worker moves the traveling carriage 16 back and forth along the travel rail 9 to move the seedling box arranging assisting tool 15 forward and backward.
[0026]
  Accordingly, the left and right seedling box positioning frames 17 can be integrated and simplified, and the center of gravity of the seedling box truck 19 is between the left and right seedling box positioning frame rotation shafts 26L and 26R in the left-right direction. In some cases, since the seedling box positioning frame 17 is in the non-seedling box arrangement state, it is possible to prevent the seedling box positioning frame 17 from rotating even if the seedling box truck 19 is slightly moved left and right. The seedling box truck 19 can be moved to a position above the traveling rail 9 in a state where the seedling box positioning frame 17 is stabilized, and an operator can move the seedling box to the seedling box truck 19 at the traveling rail 9 portion. The group B supply operation can be performed safely. Similarly, when the seedling box arranging assisting tool 15 is moved in the front-rear direction along the traveling rail 9, the seedling box truck 19 is moved to the traveling rail 9 with the seedling box positioning frame 17 being stabilized. Since it can be moved to the upper position, the operator can safely perform the moving operation in the front-rear direction of the seedling box arrangement assisting instrument 15 at the traveling rail 9 portion.
[0027]
  When arranging seedling boxes, a root cutting net (not shown) is laid on the ground beforehand. And in the state where the operator got on the tread board 18, the seedling box a from the seedling box group B on the seedling box truck 19 using a seedling box gripping tool 30 as shown in FIGS. Take out and place them on the ground.
[0028]
  The seedling box gripping tool 30 is capable of moving the fixed engagement body 31 and the movable engagement body 32 that engage with the side walls 11 at both ends along the longitudinal direction of the seedling box a, the grip 33 that the operator grips, and the movable engagement body 32. And a movable engagement body operating lever 34 to be configured. The seedling box gripping tool 30 hooks a rod of the fixed engagement body 31 from below the seedling box a to one of the vertical shapes of the side walls 11 along the longitudinal direction of the seedling box a, and operates the movable engagement body. Holding the lever 34, the movable engagement body 32 is inserted under the saddle shape at the upper end of the side wall 11 opposite to the side wall 11 with which the fixed engagement body 31 of the seedling box a is engaged, and the seedling box a is gripped. It is like that. In addition, from the state where the seedling box a is held, the lower surface of the seedling box a is grounded to the ground or the like and the seedling box a is supported, and the movable engagement body operating lever 34 is released to retract the movable engagement body 32 from the seedling box a. The fixed engagement body 31 is removed from the saddle shape of the side wall 11 along the longitudinal direction of the seedling box a to release the holding of the seedling box a.
[0029]
  Then, with the seedling box gripping tool 30, the seedling box a is brought to the ground through the seedling box positioning frame 17 from above while the lateral side wall 12 of the first seedling box a is brought into contact with the left and right positioning disks 20. The seedling box gripping tool 30 is lowered to place the seedling box a on the ground. Then, the seedling box is placed on the left and right outside of the seedling box a in which the next seedling box a is arranged in front so that the seedling box a and the lateral wall 12 in the lateral direction are in contact with each other using the left and right positioning disks 20. Arranged on the ground by the gripping tool 30 and arranged in such a manner that no gap is formed between the seedling box a and the seedling box a previously arranged on the ground. In addition, since the seedling box truck 19 can move right and left, the seedling box truck 19 can always be stopped near the worker, and the workability of the seedling box arrangement work is improved.
[0030]
  When the arrangement of the eight seedling boxes a in the left-right direction is completed, the operator moves the seedling box truck 19 between the left and right seedling box positioning frame rotation shafts 26L, 26R in the left-right direction, and the seedling box The positioning frame 17 and the tread board 18 are lifted from the ground. In this state, the traveling carriage 16 is caused to travel until the seedling box positioning frame 17 moves to an appropriate position (moves one seedling box). Then, by moving the seedling box truck 19 to either the left or right side, the left or right seedling box positioning frame portions 17L and 17R are lowered to be in the seedling box alignment state, and the operator performs the seedling box alignment operation in the next row. Go. At this time, by performing seedling box arranging work using the seedling box gripping tool 30 in a state where the operator is on the tread board 18, the seedling boxes of the previous stroke line already arranged via the tread board 18 with the weight of the operator. Press a from above. Then, similarly to the previous step, the first seedling box “a” is positioned left and right using the left and right positioning disks 20 and arranged. At this time, the seedling box moving roller 35 of the seedling box gripping tool 30 is brought into contact with the front / rear positioning plate 21 to lower the seedling box gripping tool 30 along the front / rear positioning plate 21 so that the seedling box a is placed on the ground. The movable engagement body 32 of the seedling box gripping tool 30 is placed on the ground with a space in the front-rear direction so that the movable engagement body 32 of the seedling box gripping tool 30 can be disengaged from the seedling box a. The seedling box moving roller 35 of the seedling box gripping tool 30 is released to release the engagement of the movable engaging body 32, and the seedling box moving roller 35 is brought into contact with the front / rear positioning plate 21 and lowered. By rotating the box gripping tool 30 about the rotation shaft 35a of the seedling box moving roller 35, the seedling box a is pushed rearward by the fixed engagement body 31 of the seedling box gripping tool 30, and moved on the ground. The space with the seedling box a is eliminated and the seedling box a is arranged. And the engagement with the seedling box a and the fixed engagement body 31 is cancelled | released, and it moves to the operation | work which arranges the next seedling box a. In the same manner, the seedlings a are arranged by arranging the seedling boxes a so as not to leave a gap between them on the left and right outside of the seedling boxes a arranged on the ground in the left and right direction, and by arranging the seedling boxes a with the rear seedling boxes a. The seedling boxes a are arranged so as to be spread on the ground in the house A.
[0031]
  By the way, the seedling box arrangement assisting tool 15 is connected to the moving rail 9 via the two guide rails 41 that connect the traveling rail 9 of the nursery house A and the moving rail 8 of the transport carriage 1. -It is supposed to be placed on Le8. The guide rail 41 is constituted by a shaft having a circular cross section, and the two rail intervals (rail width) are provided to be the same width as the traveling rail 9 and the moving rail 8. Yes. The guide rail 41 includes a first connection portion 43 between the front and rear support plates 42 connecting the two guide rails 41 and the moving rail 8, and a second of the travel rail. The connection part 44 is provided. The first connecting portion 43 is configured to include a shaft 43a having a diameter smaller than that of the rail 41 at the end of the guide rail 41, and the shaft 43a is placed in a cylindrical shaft at one end of the moving rail 8. The guide rail 41 and the moving rail 8 are connected by being inserted. The second connecting portion 44 includes a U-shaped guide plate 44a that is fixed to the end of the guide rail 41 so as to partially cover the rail 41 from above. The guide plate 44a is placed from above the travel rail 9 so that the guide rail 41 and the travel rail 9 are connected. The first connection portion 43 is bent with respect to the main portion 41a of the guide rail 41, and when the guide rail 41 is connected to the moving rail 8, the guide rail 41 is provided. The main part 41a of 41 is inclined forward and backward with respect to the ground. Therefore, although there is a height difference between the travel rail 8 of the transport carriage 1 on the travel rail 9 and the travel rail 9, the guide rail 41 causes the travel rail 8 to move. And the travel rail 9 can be connected.
[0032]
  When the seedling box arranging aid 15 is placed on the transfer rail 8 from the travel rail 9 to the transfer rail 8 via the guide rail 41, the transfer cart 1 moves the transfer rail 8. The direction of the seedling box arrangement assisting device 15 can be changed by rotating in the horizontal direction together with the rotating table 6.
[0033]
  Further, as shown in FIGS. 14, 15 and 16, the transport cart 1 places a seedling box group B placed on a pallet p by stacking a plurality (20) of seedling boxes a. A possible seedling box mounting table 50 can be mounted. The said seedling box mounting base 50 is comprised by the roller conveyor 51 which consists of several rollers 51a, and is comprised so that the seedling box a can be moved back and forth on the said roller conveyor 51. FIG. Side roller frames 52 whose upper ends are higher than the upper surface of the conveyor 51 are provided on the left and right sides of the roller conveyor 51, and the seedling box group B is moved to the left and right by the side edge frames 52, so 50 guards from falling from above. In addition, the upper surface of the roller conveyor 51 of the seedling box mounting table 50 becomes the same height as the upper surface of the roller conveyor 24 of the seedling box truck 19 in the state where it is mounted on the transport carriage 1. Further, a central frame 53 in the front-rear direction is provided between the side edge frames 52. On the lower side of the side edge frame 52 and the central frame 53, left and right lateral frames 54 connecting the left and right side edge frames 52 across the central frame 53 are front and rear. Each is fixedly provided. Two leg frames 55 are fixedly attached to the left and right frames 54 in a downward direction from the frame 54. And the lower end part of the said leg part frame 55 used as a total of four is mounted in the corner part of the frame-shaped vehicle body frame 3 of the conveyance trolley 1, and the seedling box mounting base 50 is mounted in the conveyance trolley 1. It has become. The rotation table 6 of the transport carriage 1 has a diameter that does not interfere with the leg frame 55. Further, a pin 56 in the front-rear direction is provided at the lower end portion of the leg frame 55. Then, the pins 56 provided on the front and rear two of the leg frames 55 are inserted into the two positioning plates 57 provided on the vehicle body frame 3 of the transport carriage 1. The two lock plates 58 provided in the vehicle body frame 3 are rotated by inserting the pins 56 provided in the other two of the leg frames 55 into the holes 57a. The notch grooves 58 a provided in the lock plate 58 are engaged with each other to fix the seedling box mounting table 50 to the transport carriage 1.
[0034]
  In addition, seedling box movement restriction tools 59 each constituted by a plate are provided before and after the roller conveyor 51 of the seedling box mounting table 50. The seedling box movement restricting tool 59 is attached to the central frame 53 of the seedling box mounting table 50 so as to be rotatable around the rotation shaft 59a, and is moved downward until it comes into contact with the upper stopper 60. The position is switched to the retracted position rotated downward until it contacts the side stopper 61. At the restriction position, the upper end of the seedling box movement restricting tool 59 is higher than the upper surface of the roller conveyor 51, and the seedling box group B on the roller conveyor 51 does not move forward and backward and does not fall from the seedling box mounting table 50. So guard. On the other hand, at the retracted position, the upper end of the seedling box movement restricting tool 59 is lower than the upper surface of the roller conveyor 51, and the seedling box group B on the roller conveyor 51 is moved back and forth so that the seedling box mounting table 50 can be moved from above. It can be taken out. A handle 62 is fixed to the side edge frame 52 of the seedling box mounting table 50, and the operator holds the handle 62 and moves the seedling box mounting table 50 together with the transport cart 1.
[0035]
  Accordingly, when arranging seedling boxes in the nursery house A, first, the transport carriage 1 equipped with the seedling box arranging auxiliary device 15 is moved from the outside of the seedling house A to the seedling house A by traveling on the traveling rail 9. . At this time, when the transport carriage 1 passes through the doorway A1 of the nursery house A, the rotating table 6 is rotated so that the moving rail 8 of the transport carriage 1 is directed in the left-right direction, thereby assisting seedling box arrangement. The conveyance carriage 1 is passed through such that the longitudinal direction of the seedling box positioning frame 17 of the instrument 15 is directed in the front-rear direction of the conveyance carriage 1. When the seedling box arrangement assisting device 15 is carried into the nursery house A, the moving rail 8 faces in the front / rear direction so that the front / rear direction of the seedling box alignment assisting device 15 and the front / rear direction of the transport carriage 1 coincide with each other. In this way, the rotary table 6 is rotated so that the front-rear direction coincides with the front-rear direction of the transport carriage 1, and the guide rail 41 is connected to the moving rail 8 to travel with the moving rail 8. Connect to rail 9. Then, the operator pushes and moves the seedling box arranging aid 15 on the moving rail 8 onto the traveling rail 9 via the guide rail 41. Then, the operator arranges the seedling boxes a from the end of the nursery house A while running the seedling box arranging assisting tool 15 on the traveling rail 9.
[0036]
  When seedling box arranging work is performed by the seedling box arranging auxiliary device 15, the seedling box mounting table 50 is mounted on and attached to the transport carriage 1. Then, the seedling box a on the seedling box trolley 19 of the seedling box arranging auxiliary device 15 is lost due to the seedling box arranging work, and the seedling box in the seedling house A from the outside of the seedling house A by the transport carriage 1. The next seedling box group B is transported to the vicinity of the arrangement assisting device 15, and the seedling box truck 19 is moved left and right to the upper position of the traveling rail 9 (left and right position of the seedling box mounting table 50). 19 is connected to the seedling box mounting table 50. Then, the seedling box group B on the seedling box mounting table 50 is pushed out onto the seedling box truck 19 using the roller conveyors 24 and 51 of both the seedling box mounting table 50 and the seedling box truck 19 together with the pallet p. Supply. This operation is repeated as necessary to supply the seedling box group B to the seedling box truck 19.
[0037]
  When the seedling box arrangement work in the nursery house A is completed, the seedling box mounting table 50 mounted on the transport cart 1 is removed, and the guide rail 41 is connected to the moving rail 8 of the transport cart 1 for moving. The rail 8 and the traveling rail 9 are connected. Then, the operator sets the left and right seedling box positioning frames 17L and 17R in a non-seedling box arrangement state in which both the seedling box positioning frames 17L and 17R are lifted from the ground, and the seedling box arrangement assisting device 15 on the traveling rail 9 is interposed through the guide rail 41. Then, the seedling box arranging aid 15 is mounted on the transport carriage 1 by being pushed onto the moving rail 8 and moved. Thereafter, the transport carriage 1 is moved to a position where the seedling box arranging auxiliary instrument 15 can be rotated in the lateral direction, and the rotary table 6 is rotated so that the moving rail 8 of the transport carriage 1 is directed in the left-right direction. Then, the transport cart 1 is caused to travel on the travel rail 9 so that the longitudinal direction of the seedling box positioning frame 17 of the seedling box alignment assisting device 15 is directed in the front-rear direction of the transport cart 1, and the entrance of the nursery house A is opened. The seedling box arrangement assisting instrument 15 is passed out of the nursery house A.
[0038]
  As described above, since the transport cart 1 can change the orientation of the seedling box arranging auxiliary instrument 15 mounted by the rotary table 6, the width of the entrance A1 of the nursery house A is the right and left of the seedling box arranging auxiliary instrument 15. Even if it is smaller than the width, the seedling box arranging assisting instrument 15 can be conveyed in the longitudinal direction, that is, the left-right direction in the conveying direction, and the seedling box arranging assisting instrument 15 can be easily conveyed into the nursery house A. . In addition, since the seedling box arrangement assisting instrument 15 can be transported into the nursery house A without providing a means for moving the seedling box arranging assisting instrument 15 to the left or right, the seedling box arranging assisting instrument 15 can be reduced in weight. Thus, the seedling box arranging aid 15 can be moved with a small force by the operator during the seedling box arranging operation.
[0039]
  Furthermore, in this transport cart 1, the seedling box arranging assisting instrument 15 can be transported into the seedling house A by traveling on the traveling rail 9, so that the seedling box arranging assisting instrument 15 is easily transported. When the seedling box arranging auxiliary device 15 mounted in the nursery house A is loaded and unloaded, the rotating table 6 rotates the seedling box arranging auxiliary device 15 in the direction of the seedling box arranging work state. It can be lowered onto the traveling rail 9 via the guide rail 41 connected to the moving rail 8, and the work of lowering the seedling box arranging auxiliary device 15 in the nursery house A is facilitated. Further, if the seedling box arrangement assisting instrument 15 is moved in the left-right direction and is to be carried into the nursery house A, the travel rail 9 is provided at the entrance / exit A1 portion of the nursery house A. Although there is a possibility of hindrance, the transport cart 1 can easily pass through the entrance / exit A1 of the nursery house A when the seedling box arranging aid 15 is carried into the nursery house A.
[0040]
  Moreover, in this conveyance cart 1, since the seedling box arrangement assistance instrument 15 can be moved on the conveyance carriage 1 by the moving rail 8, when loading and unloading the seedling box arrangement assistance instrument 15, This can be done via a guide rail 41 connected to the moving rail 8, and the loading and unloading operations can be easily performed.
[0041]
  In addition, since the seedling box mounting table 50 can be mounted on the transport cart 1, when the seedling box arranging operation is performed in the seedling house A using the seedling box arranging auxiliary device 15, The seedling box can be transported and supplied near the seedling box arranging auxiliary device 15, and the work efficiency of the seedling box arranging operation can be improved.
[0042]
  In addition, although embodiment of this invention explained in full detail the seedling box arrangement | sequence auxiliary instrument 15 as a seedling box arrangement machine, this invention is not limited to this. For example, instead of the seedling box arranging auxiliary device 15, an automatic seedling box arranging machine that automatically arranges the seedling box a in the nursery house A may be used.
[0043]
  In addition, although embodiment of this invention demonstrated what moves the conveyance trolley | bogie 1 and the seedling box arrangement | sequence auxiliary instrument 15 on the rail 9 manually, this invention is not limited to this.
[Brief description of the drawings]
FIG. 1 is a side view showing a transport cart.
FIG. 2 is a front view showing a transport cart
FIG. 3 is a plan view showing a transport cart
FIG. 4 is a plan view showing a nursery house
FIG. 5 is a perspective view showing a seedling box.
FIG. 6 is a front view showing a seedling box arranging aid.
FIG. 7 is a front view showing a seedling box arranging aid in a non-seedling box arrangement state.
FIG. 8 is a plan view showing a seedling box arranging aid
FIG. 9 is a side view showing a seedling box gripping tool.
FIG. 10 is a bottom view showing a seedling box gripping tool.
FIG. 11 is a side view showing a state where seedling boxes are arranged by a seedling box gripping tool.
FIG. 12 is a side view showing a transport cart in a state where a seedling box arranging auxiliary device is mounted.
FIG. 13 is a plan view showing a guide rail.
FIG. 14 is a side view showing a transport cart in a state where a seedling box mounting table is mounted.
FIG. 15 is a front view showing a transport cart with a seedling box mounting table mounted thereon;
FIG. 16 is a plan view showing the transport cart with the seedling box mounting table mounted thereon;
[Explanation of symbols]
  9 ... Running rail, 15... Seedling box arranging aid (seedling box arranging machine),DESCRIPTION OF SYMBOLS 16 ... Running cart, 17 ... Seedling box positioning frame, 17L ... Left part of seedling box positioning frame, 17R ... Right part of seedling box positioning frame, 18 ... Footboard, 19 ... Seedling box truck, 26L, 26R ... Seedling box positioning frame Rotating shaft, 27a ... notch, 28L ... leg,A ... Nursery house, A1 ... Entrance

Claims

A traveling carriage (16) traveling on a traveling rail (9) laid in the nursery house (A) from the entrance (A1) of the nursery house (A), and a seedling supported by the traveling carriage (16) A box positioning frame (17), left and right footboards (18) connected to the seedling box positioning frame (17), and a seedling box truck (19) that moves in the left-right direction on the seedling box positioning frame (17). The seedling box positioning frame (17) is formed in a reverse shape with the left and right ends being higher in the front view, and the seedling box positioning frame (17) has left and right seedling box positioning frame rotation shafts (26L, 26R). ), And left and right notch portions (27a) that engage the left and right seedling box positioning frame rotation shafts (26L, 26R) are provided on the traveling carriage (16), and the seedling box truck (19) is If you move the seedling box positioning frame rotation axis (26L) to the left side, the seedling box truck 19) The right seedling box positioning frame rotation shaft (26R) floats upward from the lower end of the right notch (27a) by its own weight, and the seedling box is rotated around the left seedling box positioning frame rotation shaft (26L). The positioning frame (17) rotates to lower the left side portion (17L) of the seedling box positioning frame (17), and the leg (28L) provided at the left end of the seedling box positioning frame (17) is grounded. The left side portion (17L) is in a seedling box arrangement state parallel to the ground, and conversely, when the seedling box dolly (19) is moved to the right side of the right seedling box positioning frame rotation shaft (26R), the right side The seedling box positioning frame (17) rotates around the seedling box positioning frame rotation axis (26R) to lower the right side portion (17R) of the seedling box positioning frame (17), and the seedling box positioning frame (17) Seedling with the leg provided at the right end of the ground and the right part (17R) parallel to the ground When the seedling box trolleys (19) are moved between the left and right seedling box positioning frame rotating shafts (26L, 26R), the left and right seedling box positioning frame rotating shafts (26L, 26R) are turned left and right. A seedling box arranging machine in a non-seedling box arrangement state in which the left part (17L) and the right part (17R) are both lifted from the ground by being supported by the notch part (27a).